It's an old cliché that sports is a metaphor for the human condition. But there's a lot of truth to it. As technology helped humanity obliterate these milestones and move beyond what until 100 years ago had been a long, bleak history, similar advances in nutrition, training, and using technology to improve technique have enabled sports records to fall with astonishing regularity. Let there be sports leagues that thrive on "pure sport," whatever that is, and let there be sports leagues where athletes are left to balance their own health and career longevity with technology, pharmacology, and the quest for a competitive advantage.